import { Graduation, GraduationChange } from "./graduation-common.ts";
import { Student } from "./student-common.ts";

const students = [
	new Student(1, "foo bar"),
	new Student(2, "maxi mustermensch"),
	new Student(3, "1"),
	new Student(4, "2"),
	new Student(5, "3"),
	new Student(6, "4"),
	new Student(7, "5"),
	new Student(8, "6"),
];

async function fetchStudentsMock(id?: number, name?: string) {
	return students.filter((s) => {
		return (
			(typeof id === "undefined" || s.id === id) &&
			(typeof name === "undefined" || s.name.includes(name))
		);
	});
}

async function fetchSubjectsMock() {
	return ["Mathe", "Deutsch", "Englisch"];
}

function fetchProgressMock(subject: string) {
	return new Promise((resolve) => {
		if (subject === "Mathe") {
			resolve([40, 10, 3]);
		} else if (subject === "Deutsch") {
			resolve([10, 2, 0]);
		} else if (subject === "Englisch") {
			resolve([50, 25, 10]);
		} else {
			resolve([0, 0, 0]);
		}
	});
}

const graduations = new Map();
for (const s of students) {
	switch (s.name) {
		case "foo bar":
			graduations.set(
				s,
				Graduation.from(s, [
					GraduationChange.newGreenPointChange(false, "Gute Arbeit", "Florian Fischer"),
					GraduationChange.newOrangePointChange(true, "", "Florian Fischer"),
				]),
			);
			break;
		case "maxi mustermensch":
			graduations.set(
				s,
				Graduation.from(s, [
					GraduationChange.newGreenPointChange(false, "", "Florian Fischer"),
					GraduationChange.newGreenPointChange(false, "", "Florian Fischer"),
					GraduationChange.newCoachAssignmentChange({ 2: ["Florian Fischer"] }),
				]),
			);
			break;
		case "b b b":
			graduations.set(
				s,
				Graduation.from(s, [GraduationChange.newRedPointChange(false, "", "Florian Fischer")]),
			);
			break;
		case "1":
		case "2":
		case "3":
		case "4":
			graduations.set(
				s,
				Graduation.from(s, [GraduationChange.newGreenPointChange(true, "", "Florian Fischer")]),
			);
			break;
		case "5":
			graduations.set(
				s,
				Graduation.from(s, [
					GraduationChange.newGreenPointChange(true, "", "Florian Fischer"),
					GraduationChange.newGreenPointChange(true, "", "Florian Fischer"),
				]),
			);
			break;
		default:
			graduations.set(s, Graduation.from(s, []));
	}
}

async function fetchGraduationMock(s: Student) {
	return graduations.get(s);
}

async function fetchGraduationChangesMock() {
	return Array.from(graduations.values().map((g) => g.changes)).flat();
}

export {
	fetchStudentsMock,
	fetchSubjectsMock,
	fetchProgressMock,
	fetchGraduationMock,
	fetchGraduationChangesMock,
};